Hedera Hashgraph is a blockchain network that was designed to allow developers to create DApps that require higher throughput and faster settlement. Hedera uses its own consensus protocol that assigns every transaction a consensus time that is calculated as the median of the times at which each node in the network first received it. The network is powered by the HBAR coin.

Mainframe is creating a blockchain development platform for decentralized applications. Their marketing materials place a strong emphasis on encryption, privacy, and interoperability. Onyx, a decentralized workplace messaging tool, is the first application to be built on the Mainframe network.
Mainframe is powered by the MFT token.

Scatter is a browser extension for the EOS blockchain that enables users to sign transactions on the EOS blockchain. Users are able to sign transactions with their private keys from web applications without having to expose their personal information. The founders of Scatter are also developing the Reputation and Identity Layer (RIDL), which will provide a reputation system that will add trust and transparency to the DApp ecosystem.